How I can put my back screen projection?

When I use my laptop with a projector that is necessary to hit the fn f3 Black out the screen of the laptop and make visible in the projection screen. How I can bring it back! I've been to restart the laptop to regain control but I know it's an easier way

Re-press Fn + F3 on my laptop its fn + f5. You can also go in the properties selct screen and the screen before unplugging the projector. in this way: Right click on the desktop, display settings, properties, and THIS IS MY MAIN deselect MONITOR and it should work also do not know if Wil work for you, but when I disconnect the monitor cable into my laptop, autocatically screen changes. hope aid.

Projection Screen Black Diamond Seeing Is Believing

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